Foojay Today

Using Firefox Profiler Beyond the Web

Ever wondered how to use Firefox Profiler to view your own profiling data? This article gives you the foundations!
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- Latest
- Performance
- Tools
- Johannes Bechberger
Feb 03, 2023
Explained: Memory Allocation Pacing in Azul Zulu Prime builds of OpenJDK

Allocation Pacing (AP) is a technique within the JVM of Azul Zulu Prime builds of OpenJDK to prevent long memory allocation delays.
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- Latest
- Java Core
- Performance
- Frank Delporte
Feb 03, 2023
What Should I Know About Garbage Collection as a Java Developer?

Check out this overview of the functionality of the Garbage Collector and the things a developer should know.
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- Latest
- Java Core
- Performance
- Frank Delporte
Feb 03, 2023
Memory Debugging – a Deep Level of Insight

It isn’t just about memory leaks. Understanding how RAM is used and its content provides insight into the app you can’t get in any other way!
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- Latest
- IntelliJ IDEA
- Shai Almog
Feb 03, 2023
Debugging Threads and Asynchronous Code

Track thread race conditions, figure out deadlocks, and understand the flow of asynchronous applications (even in custom code) using the debugger.
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- Latest
- IntelliJ IDEA
- Tutorials
- Shai Almog
Feb 03, 2023

What's New?

Java Quick Start Guide

Is Java your first programming language and do you want to get up and running fast? Or maybe you are already an experienced programmer in another language and want to give Java a try? Let friends of OpenJDK help you get started!

Get Started quick start quide image

OpenJDK 17 LTS Released!

On September 14, 2021, the latest Long Term Support (LTS) release, OpenJDK 17 LTS was released. Get started...

Foojay — a place for friends of OpenJDK

Welcome to Foojay, a central resource for the Java community’s daily information needs, providing a community platform for the Java ecosystem — bringing together and helping Java professionals everywhere.

Greatest Tweets

"I always read the change logs of the tools I’m using, but Java was not on the top of my list. Thanks to Foojay.io, it may finally be a pleasing experience!"

Mike Kowalski @mikemybytes
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"One of the best resources on Java is Foojay.io!"

Chandra Guntur @CGuntur
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"I'm getting quite impressed by Foojay.io, with its growing number of contributors and articles about relevant (r)evolutions in the wider Java landscape!"

Johan Vos @johanvos
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"Foojay.io is building up quite the library of articles! With commitment and input from some of the best companies in the industry."

Jason Ortlepp @Jadonblade
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"If you are overwhelmed by Java updates and have no time to catch up, I highly recommend trying Foojay.io!"

Neha Sardana @nehasardana09
Greatest Tweets

"Do you want to find any information related to OpenJDK and Java? Then visit Foojay.io!"

Elias Nogueira @eliasnogueira
Greatest Tweets

"Wow, Foojay.io is a fantastic place for OpenJDK and Java in general, new features, explanations, and great content posted every day, try it!"

Mohamed Taman @_tamanm
Latest Tweet

"Just visited Foojay.io and instantly followed it on Twitter: it is an excellent resource for the OpenJDK community."

Pradeep K @PradeepK4J

OpenJDK Release Roadmap

OpenJDK 19 (Current Feature Release)

This release is the Reference Implementation of version 18 of the Java Platform, as specified by JSR 394 in the Java Community Process.

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Sep 20, 2022
OpenJDK 18

This release is the Reference Implementation of version 18 of the Java Platform, as specified by JSR 393 in the Java Community Process.

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Mar 22, 2022
OpenJDK 17 (LTS)

This release is the Reference Implementation of version 17 of the Java SE Platform, as specified by JSR 392 in the Java Community Process.

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Sep 14, 2021
OpenJDK 16

Provided Warnings for Value-Based Classes, Pattern Matching for instanceof, Records (see more on Foojay), and Sealed Classes, as a preview feature (see more on Foojay).

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Mar 16, 2021
OpenJDK 15

OpenJDK 15 is the open-source reference implementation of version 15 of the Java SE Platform, as specified by by JSR 390 in the Java Community Process.

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Sep 15, 2020
OpenJDK 14

Provided a significant set of new features—the addition of Records (as a preview feature), pattern matching for instanceof (also as a preview feature), and more helpful NullPointerExceptions.

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Mar 17, 2020
OpenJDK 13

Introduced Text Blocks, as a preview feature, and the second preview of Switch Expressions.

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Sep 17, 2019
OpenJDK 12

Introduced OpenJDK preview features, which are fully specified and implemented, but impermanent, available in an OpenJDK feature release for feedback, which may lead to it becoming permanent, with Switch expressions as the first preview feature.

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Mar 19, 2019
OpenJDK 11 (LTS)

Focused more on removal than addition—we bid farewell to all of the APIs under the java.se.ee aggregator module (CORBA, JAX-B and JAX-WS) and the Oracle JDK lost the browser plugin (surely, the end of applets), Java Web Start and JavaFX.

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Sep 25, 2018
OpenJDK 10

Brought local variable type inference, with "var" introduced to the Java language, in the first release under the new six-month release cadence.

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Mar 20, 2018
OpenJDK 9

Introduced Project Jigsaw, the Java Platform Module System. A contentious development which involved delays to the release of OpenJDK 9 after the JCP took the unprecedented step of voting against the public review of JSR 376., leading to changes to the encapsulation of internal APIs and a reconsideration ballot.

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Sep 21, 2017
OpenJDK 8 (LTS)

Contained probably the biggest changes to Java since its introduction in the form of Lambda expressions and the Streams API, which add functional-style programming. This has proved to be a hugely popular feature and got many developers excited about using Java again.

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Mar 18, 2014

Add Events By Sending Details To [email protected]

Java Events

FOSDEM, Brussels Finished

Feb 04, 2023 -Feb 05, 2023

/ CFP Ended

FOSDEM offers open source and free software developers a place to meet, share ideas and collaborate. Renowned for being highly developer-oriented, the event brings together some 8000+ geeks from all over the world.

Event Page
Apache Kafka Meetup Singapore

Feb 06, 2023 -Feb 06, 2023

Powering AI/ML systems with Apache Kafka & Better Kafka Performance Without Changing Any Code

Event Page
Jfokus, Sweden Stockholm, Sweden

Feb 06, 2023 -Feb 08, 2023

/ CFP

Jfokus will be held at Waterfront Congress Center in Stockholm, Sweden 6-8 February 2023.

Event Page
Boston JUG

Feb 07, 2023 -Feb 07, 2023

How Java Apps Litter Beyond the Heap (And What We Can Do About That) -- Denis Magda

Event Page
JUG Oberpfalz: Java on Tracks – Modellbahnsteuerung mit Dirk Weil (Talk in german) online

Feb 08, 2023 -Feb 08, 2023

Details Wir freuen uns sehr Dirk Weil mit folgendem Thema begrüßen zu dürfen (online via Zoom): Java on Tracks - Modellbahnsteuerung mit JEE, MicroProfile und self-contained Systems In einem Code Camp unserer Firma entstand eine Anwendung mit Show-Effekt: Statt staubtrockener ...

Event Page

about

What’s Foojay?

Foojay is a central resource for the Java community’s daily information needs, providing a community platform for the Java ecosystem — bringing together and helping Java professionals everywhere. For example, see the Download page.

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